Hi annemariewhit - Good for you for deciding to detox your liver, and for changing your diet! I'm assuming you now eat a healthy, high-fiber diet. Is that the case?
I agree with Propaul said about doing a bowel cleanse. Detoxing the liver causes it to dump old toxins into the colon and bloodstream. Because of this, it works better if one does colon cleansing, then kidney cleansing before detoxing the liver. You can read about this in "The Detox Book" by Bruce Fife, ND.
Also, expect some cleansing reactions and possibly some healing crises when your body starts detoxing and releasing the old drugs you used to take. There may be times when you feel worse before you feel better during detox.